wading depth

Submitted: Wednesday, Apr 11, 2007 at 04:50
ThreadID: 44185 Views:3842 Replies:11 FollowUps:12
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What determines the wading depth on a factory 4wd? For instance the gu is rated at 700 mm and the gq at 600. Whats the difference?
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Reply By: Willem - Wednesday, Apr 11, 2007 at 06:16

Wednesday, Apr 11, 2007 at 06:16
100mm
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Follow Up By: Robin - Wednesday, Apr 11, 2007 at 08:17

Wednesday, Apr 11, 2007 at 08:17
Your awake early this morning Willem

Robin Miller
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Follow Up By: Member - MUZBRY (VIC) - Wednesday, Apr 11, 2007 at 08:58

Wednesday, Apr 11, 2007 at 08:58
Gday Willem
My enineer son would have needed a calculator to work that out,,well done ,,we older type of people can do these sums in our head..................
Muzbry
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Follow Up By: Bonz (Vic) - Wednesday, Apr 11, 2007 at 11:52

Wednesday, Apr 11, 2007 at 11:52
I was gonna say that at 0600 this AM and controlled my primal instinct hahahaha
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Reply By: Member - Troopytrek - Wednesday, Apr 11, 2007 at 06:21

Wednesday, Apr 11, 2007 at 06:21
G,day Lawrence, probably the height of your air intake, computer ,or other sensitve items, but most likely the air intake. Cheers
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Follow Up By: CLC50 - Wednesday, Apr 11, 2007 at 06:27

Wednesday, Apr 11, 2007 at 06:27
Hi
Water in Diff or Gear box ,not much Fun .extend air breather hose higher for extra clearance
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Follow Up By: Member - Axle - Wednesday, Apr 11, 2007 at 19:59

Wednesday, Apr 11, 2007 at 19:59
In the landy i ikeep going to my sensitive parts hit water!!! About 1.2m.

Axle.
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Reply By: Member - Kiwi Kia - Wednesday, Apr 11, 2007 at 07:21

Wednesday, Apr 11, 2007 at 07:21
Hi Lawrence,
Vehicle manufacturers don't want owners coming back with a problem caused by wading and claiming that it be fixed under warranty so they are very conservative with their 'limits'.

They also don't want it to become a safety issue. If you are lightly loaded it often comes as a surprise to owners just how easy a vehicle can float ! (usually the back end first). If your vehicle starts to float you loose traction and can end up drifting down river - not a good look, possibly with disastrous consequences ! So, to avoid litigation the manufacturers seem to choose a wading depth that you can't argue with. The vehicle MAY be able to cross a deeper river but don't blame the manufacturer if it ingests water into the engine, diffs, gearbox, wheel bearings etc. or floats off down river as they have plainly stated in the owners manual that you should not have been driving in that depth of water.

In my experience the average 'recommended' maximum is about half wheel height.
AnswerID: 232676

Follow Up By: Leroy - Wednesday, Apr 11, 2007 at 08:10

Wednesday, Apr 11, 2007 at 08:10
'In my experience the average 'recommended' maximum is about half wheel height'

You're no fun!

Leroy
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Follow Up By: Member - Kiwi Kia - Wednesday, Apr 11, 2007 at 08:58

Wednesday, Apr 11, 2007 at 08:58
Yep, you are right Leroy but the question was what determins the recomended wading height and I reckon the answer is based on legal worries rather then practical considerations.
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FollowupID: 493564

Follow Up By: Leroy - Wednesday, Apr 11, 2007 at 14:33

Wednesday, Apr 11, 2007 at 14:33
well I know this is too deep!!

http://web.aanet.com.au/mypictures/river1.wmv

Leroy
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Follow Up By: Member - Arkay (SA) - Thursday, Apr 12, 2007 at 08:49

Thursday, Apr 12, 2007 at 08:49
Wading depths may be O.K. for what I call splash-and-dash. No good for wide rivers, with or without fast flowing water e.g Pentecost, Durack.
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Reply By: Robin - Wednesday, Apr 11, 2007 at 08:22

Wednesday, Apr 11, 2007 at 08:22
Rating is also time based Lawerance although not stated so I guess its an amount of water leaking past various seals.

Mines a petrol GU so can usually take a bit more with the air intake pipe at air filter at a height of 1200mm - mind you the car begins to float at about 1100mm
anyway and I chicken out after that , so never needed a snorkel etc

Robin Miller
AnswerID: 232688

Reply By: MEMBER - Darian (SA) - Wednesday, Apr 11, 2007 at 08:42

Wednesday, Apr 11, 2007 at 08:42
Quite a few fourbies seem to have a wading depth specc'd at 700mm or close to it.
I take it as the point where water would enter the air intake - a complete disaster in a diesel of course...... the alternator on mine would get wet before 700mm, but maybe not while 'charging' through the water ....... a snorkel adds about a metre and the big bonus is cleaner air resulting in fewer air filter services. I reckon a small tarp on the front for the vitals, plus the snorkel is a good plan.
AnswerID: 232691

Follow Up By: Member - Davoe (Nullagine) - Wednesday, Apr 11, 2007 at 13:38

Wednesday, Apr 11, 2007 at 13:38
More like the top of your diff breather which is approximatly tyre hight.
interestingly i am fairly sure the old bravo/courier had the highest MWD
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FollowupID: 493612

Reply By: Des Lexic - Wednesday, Apr 11, 2007 at 10:21

Wednesday, Apr 11, 2007 at 10:21
I think that any water above testicle height ceases to become wading depth and then becomes swimming depth.
If you do the unmanly thing and send the girls across, you probably should not let Tasmania get wet.
Just my opinion for what it's worth.
AnswerID: 232701

Follow Up By: Bonz (Vic) - Wednesday, Apr 11, 2007 at 11:54

Wednesday, Apr 11, 2007 at 11:54
As soon as mine hit the water they recede UPWARDS at a great rate, that certainly confuses the testicle rule
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Reply By: pepper2 - Wednesday, Apr 11, 2007 at 10:50

Wednesday, Apr 11, 2007 at 10:50
I had a new disco once after about 3 months got a survey fron LR,sent it back complaining that water came inside soaking carpets,LR replied advising wading depth is below floor height....ooopps

also discos used to require a WADING plug to be fitted in timing case cover plus another plug to be fitted in bottom of gearbox,but interestingly they were not supplied with a new disco you had to buy them seperately....
AnswerID: 232707

Reply By: Member - Kiwi Kia - Wednesday, Apr 11, 2007 at 13:08

Wednesday, Apr 11, 2007 at 13:08
Saw some Army lanrovers near Darwin a while back that had a white line marker painted on the side indicating max water depth. The line was below door sill !
AnswerID: 232718

Follow Up By: Waynepd (NSW) - Wednesday, Apr 11, 2007 at 13:50

Wednesday, Apr 11, 2007 at 13:50
That was probably more environmental than safety.
Trying to keep the oil away from the water...
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FollowupID: 493613

Reply By: Auntie - Thursday, Apr 12, 2007 at 19:12

Thursday, Apr 12, 2007 at 19:12
We always send the girls across first. If it is knee deep ( Fa- nee that is) that's deep enough!! We applied the same rule when wading Tunnel Creek in the Kimberley. Send them in first !!
AnswerID: 233004

Reply By: Mike Harding - Thursday, Apr 12, 2007 at 19:27

Thursday, Apr 12, 2007 at 19:27
Top of the tyres does me - I never felt the need to be macho.
AnswerID: 233012

Reply By: arewelost - Saturday, Apr 14, 2007 at 01:30

Saturday, Apr 14, 2007 at 01:30
hi
not being 100% conversant with to 2 models in question just curious to know are the fan heights the same or could this have some bearing on the question would be intersted to know
cheers steve
AnswerID: 233263

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